Antique House or Servants Bell. Good working condition and rings true. The spike is knocked into the wall between the bricks. That keeps the spring fixed side on to the wall, a wire then fixed to the rocker arm at the top to swing the bell. The centre spring pull it back as it was rung. This Bell is in brass not bell metal with original clapper and is marked no. 5.
Just needs a cut nail to go through the centre to fix it to a wall.